Fatal error: Uncaught Error: Class 'Symfony\Component\HttpFoundation\Response' not found in /home/devmecseminars/public_html/mec/vendor/symfony/http-foundation/BinaryFileResponse.php:26 Stack trace: #0 {main} thrown in /home/devmecseminars/public_html/mec/vendor/symfony/http-foundation/BinaryFileResponse.php on line 26